Pic 18f Usb

[Bruce]

I've used it, and if you're looking to get started with USB, then Dave's new
EasyHID & the PIC18F4550 are definitely the way to go.

Download & install EasyHID.
http://www.mecanique.co.uk/products/usb/easyhid.html

I have several projects for USB coming shortly, but in the mean time, I've
loaded the files for a complete USB project on our website.

The zip file contains PBP source code for a PIC18F4550, and VB source for a
USB analog data-logger. Should be fun for anyone interested in tinkering with
EasyHID and the new full-speed 18F USB parts.

Here are the files: http://www.rentron.com/mcstudio/EasyHIDPrj.zip

You'll need VB6 & SoftWire. You can download SoftWire from here. It's free.
http://www.softwire.com/swdownload/softwiredownload.htm

I used the activx controls in SoftWire for the analog meter interface. Really
nice stuff.

You'll also need PBP version 2.46 since this is the version offering support for
the newer 18F USB parts.

If anyone's looking for an excellent book on USB, then grab a copy of Jan
Axelson's new 3rd edition of USB Complete. We just got them in. I spent the
last few days reading mine, and it's awesome.

Jan has done an outstanding job on her 3rd edition of this book. Even "I" can
understand it now...;o]

[Demon]

I'm also in the middle of trying to use EasyHID. I'm just not sure where the USB18.ASM file fits in the grand scheme of things.

I used the PIC18F4550, PBP and VB. The file is in the project PBP folder.

I also got USB Complete as well as USB Design By Example. It's too bad they chose to use EZ-USB chips from Cypress or else I could have used their examples directly. Unfortunately I don't know enough about MPASM Assembler, let alone Cypress' version to convert things around.

Robert

[Demon]

Is it complicated to get the generated code to be compatible with the slower USB speed? I'd like to be able to connect to PCs that do not yet have USB 2.0.

Robert

[Demon]

Bruce,

I get a LOT more files generated on the PIC side?

It's that large Assembler file with all the VERY important USB routines that I don't know where that fits in. It doesn't seem to be linked with the PBP base program at all, or I missed something?

Robert
?

[Demon]

Bruce,

Don't forget to add a README that mentions mcHID.dll and where the user can get it. Your PC-side code won't work without it.

Robert

[Bruce]

Hi Robert,

You should have 8 (PBP) files total generated by EasyHID. All this stuff is required, and included when you compile for the 18F USB part.

Look in your PBP\USB18 directory for USB.TXT. This explains what most of
the files are.

[Demon]

Thanks Bruce, that's the only place I hadn't looked for help.


"The header file for the device, the files USB18.ASM, USB18MEM.ASM, USB18.INC, USBDESC.ASM and the project descriptor file, as well as any desired sample programs, should be copied to the project source subdirectory before being used."

Ok, so we just have those files sitting there when we compile and the compiler takes care of everything, cool!


"For low-speed USB operation, the main changes are to set the system clock postscaler to divide by 4 and change the define for UCFG_VAL in the descriptor file for the project. The sample project descriptor files show settings of UCFG_VAL for both full-speed and low-speed. With these settings, for full-speed, the PIC core runs at 48MHz. For low-speed, the PIC core runs at 24MHz."

Ok, I haven't checked the details, but at least it's possible to adjust for low-speed USB, excellent!


Robert

[mbramwel]

This is a very interesting thread. I am especially interested in the data logger. I was thinking about putting together a PIC based scope project. Something that could clip onto a few pins and display the waveforms on a PC screen. Your project looks very interesting. Any special hardware being used? How to you hookup the inputs without fear of over voltage?

Do you get 0 to 5 volts readings or more like .7v to 4.xx readings?

[aman_b]

Hi
I tried to access the link for zip file and the easy hid, but seems like they dont exist anymore. could you please attach them in the forum. That would very helpful
Aman

I've used it, and if you're looking to get started with USB, then Dave's new
EasyHID & the PIC18F4550 are definitely the way to go.

Download & install EasyHID.
http://www.mecanique.co.uk/products/usb/easyhid.html

I have several projects for USB coming shortly, but in the mean time, I've
loaded the files for a complete USB project on our website.

The zip file contains PBP source code for a PIC18F4550, and VB source for a
USB analog data-logger. Should be fun for anyone interested in tinkering with
EasyHID and the new full-speed 18F USB parts.

Here are the files: http://www.rentron.com/mcstudio/EasyHIDPrj.zip

You'll need VB6 & SoftWire. You can download SoftWire from here. It's free.
http://www.softwire.com/swdownload/softwiredownload.htm

I used the activx controls in SoftWire for the analog meter interface. Really
nice stuff.

You'll also need PBP version 2.46 since this is the version offering support for
the newer 18F USB parts.

If anyone's looking for an excellent book on USB, then grab a copy of Jan
Axelson's new 3rd edition of USB Complete. We just got them in. I spent the
last few days reading mine, and it's awesome.

Jan has done an outstanding job on her 3rd edition of this book. Even "I" can
understand it now...;o]

[Bruce]

Sorry. These files are no longer available since the support applications you would need to install to use them have been discontinued.

Mecanique dropped the free version of EasyHID, and the VB6 version of Softwire is no longer available. Without these two applications, the .zip file would be useless.

See Mr E's USB example here: http://www.picbasic.co.uk/forum/showthread.php?t=5418

[mister_e]

problem now will be the .dll. Not sure if we are allowed to distribute it

[RYTECH]

So basically now it's part of microcode studio right?

This confused me too for a bit till i saw it in Microcode studio's "view" menu.

[mister_e]

And those having the old black installation CD... don't have this chance 'till now (december 18/2007)

Or once again, i still miss something... that's what happen when you're coming old.

[Darrel Taylor]

It's an ODD one.

Can't remember anyone UN-Releasing software that was once Free in the Public Domain.
Till now.

That's it, from now on, everyone must BUY Instant Interrupts. (NOT!)
Pffft!
<br>

[wjfong]

I've used it, and if you're looking to get started with USB, then Dave's new
EasyHID & the PIC18F4550 are definitely the way to go.

Download & install EasyHID.
http://www.mecanique.co.uk/products/usb/easyhid.html

I have several projects for USB coming shortly, but in the mean time, I've
loaded the files for a complete USB project on our website.

The zip file contains PBP source code for a PIC18F4550, and VB source for a
USB analog data-logger. Should be fun for anyone interested in tinkering with
EasyHID and the new full-speed 18F USB parts.

Here are the files: http://www.rentron.com/mcstudio/EasyHIDPrj.zip

You'll need VB6 & SoftWire. You can download SoftWire from here. It's free.
http://www.softwire.com/swdownload/softwiredownload.htm

I used the activx controls in SoftWire for the analog meter interface. Really
nice stuff.

You'll also need PBP version 2.46 since this is the version offering support for
the newer 18F USB parts.

If anyone's looking for an excellent book on USB, then grab a copy of Jan
Axelson's new 3rd edition of USB Complete. We just got them in. I spent the
last few days reading mine, and it's awesome.

Jan has done an outstanding job on her 3rd edition of this book. Even "I" can
understand it now...;o]

good day, just tried out the easyhid & got some problems here, haha... i got the error msg: unable to locate device item.

can anybody tell me how can i rectify this problem??

thanks alot